Re: Is the NooElec nanoVNA any good?
On Mon, Nov 18, 2019 at 07:49 PM, Roger Need wrote: "Sound like NooElec is selling an older version board. Anyone know what is the version number of the PCB? (3.1? latest is 3.3) Is this a NanoVNA-H
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hwalker
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#7191
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Re: BH5HNU NanoVNA-F Aliexpress site no longer there?
Dear Conrad, I'm a member of NanoVNA-F development team, because of BH5HNU's personal problem, the hamelec aliexpress store is no longer selling product now, but we'll reopen a new store soon, it
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June
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#7190
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Re: Is the NooElec nanoVNA any good?
Sound like NooElec is selling an older version board. Anyone know what is the version number of the PCB? (3.1? latest is 3.3) Is this a NanoVNA-H or a clone?
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Roger Need
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#7189
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Re: BH5HNU NanoVNA-F Aliexpress site no longer there?
Yes, I got the feeling that the -F version was a bit less advanced. I have the standard model, and will eventually upgrade, but I will make a decision about what to upgrade to later.
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Dr. David Kirkby, Kirkby Microwave Ltd
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#7188
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Re: Increasing measurement range (ohms) ?
Here is a picture story presented as 5 figures which hopefully will clear some questions. In the five figures we start with a circuit representation of a dipole which is a bit unusual as it has a
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alan victor
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#7187
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Re: BH5HNU NanoVNA-F Aliexpress site no longer there?
Thanks for the clarification! For some reason the Version 2 devs think that they can only offer a $50. price-point device with a small display. For some reason they don't see that offering a "B" (or
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David KD4E <dcolburn@...>
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#7186
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Re: errors of "error" models
#78' : #78 was corrected : https://www.op4.eu/code/s2p.png - #78: on the measurement of s-parameters using the [LeastVNA] only 18 November 2019 - /g/nanovna-users/message/7162
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gin&pez@arg
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#7185
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Re: NewBe questions
Thanks Larry. I had looked at a lot of posts regarding "battery" but had not seen a report of similar behavior. I will take your advice.
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Dick W0QM <richard.n.grubb@...>
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#7184
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Re: BH5HNU NanoVNA-F Aliexpress site no longer there?
Hello Erwin, I am quite happy at number 2 ? Good to see you here. 73 Conrad PA5Y
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Conrad, PA5Y
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#7183
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Re: BH5HNU NanoVNA-F Aliexpress site no longer there?
My mistake David. Conrad
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Conrad, PA5Y
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#7182
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Re: BH5HNU NanoVNA-F Aliexpress site no longer there?
That's the one, many thanks to all. Regards Conrad PA5Y
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Conrad, PA5Y
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#7181
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Re: Increasing measurement range (ohms) ?
Hello KV5R, sure. Good questions and good points. I'll try to go through your note step by step question with a response. ================== Rather than constructing, would something like an
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alan victor
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#7180
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Re: NewBe questions
The unit is defective as there is no timeout built into the firmware.? What you are seeing is a defective battery charger chip that are found on units from certain Chinese manufacturers.? Contact
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Larry Rothman
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#7179
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NewBe questions
I received a new 2.8" NanoVNA about a week ago purchased on eBay from a US supplier "thanksbuyer-hobby" . It appears to be complete but without an EMI shield. I have calibrated and used it
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Dick W0QM <richard.n.grubb@...>
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#7178
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Re: BH5HNU NanoVNA-F Aliexpress site no longer there?
=============================================================== David, Currently we have the following products being sold: 1. 2.8" NanoVNA (Hugen's MOD of edy555's original open source project). All
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hwalker
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#7177
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Re: BH5HNU NanoVNA-F Aliexpress site no longer there?
Isn't there a 3rd path - the "2"? "H" has the best firmware but older hardware & small display, "B" larger display & some hardware updates, but older firmware, "2" about to release newer hardware &
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David KD4E <dcolburn@...>
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#7176
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Re: Increasing measurement range (ohms) ?
Greetings Alan, You have proposed an idea on this subject that my old brain can almost understand! :) I have a couple questions, if you care to elaborate. I will intersperse them below. Rather than
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KV5R <kv5r@...>
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#7175
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Re: Battery
That's the LiIon battery protection circuit - don't touch it.It prevents the battery from being overcharged or discharging too much.Read up on battery protection circuits here:?
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Larry Rothman
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#7174
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Battery
Hi all Under the battery (3.7V - 450mAh) of my nanovna-H is taped a tiny pcb with 2 IC's, 2 resistors and a capacitor (all SMD), is there anyone who knows what this is ? Jos Op 18-11-2019 om 10:49
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Jos Stevens
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#7173
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Re: errors of "error" models
[ann] : [NanoVNA] ~ [LabVNA] comparison using a 2-port
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gin&pez@arg
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#7172
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